The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 08, 2025
Filed:
Jul. 05, 2021
Suzhou Sonavox Electronics Co., Ltd., Jiangsu, CN;
Xiafeng Xue, Jiangsu, CN;
Guoqiang Chai, Jiangsu, CN;
SUZHOU SONAVOX ELECTRONICS CO., LTD., Jiangsu, CN;
Abstract
The present disclosure relates to a vehicle-mounted woofer device and a design method therefor. The vehicle-mounted woofer device comprises a box body and a woofer disposed in the box body. The woofer comprises a cone. The cone has a front surface facing the interior of a cabin and a rear surface opposite to the front surface. A cavity is formed between the rear surface of the cone and the box body. A main waveguide for communicating the cavity with the outside is disposed in the box body. A secondary waveguide is further disposed in the box body. The main waveguide and the secondary waveguide are each provided with an inlet in communication with the cavity. The main waveguide is provided with an outlet for communicating with the outside of the cabin, and the secondary waveguide is provided with an outlet for communicating with the outside or inside of the cabin. The woofer device of the present disclosure has high sensitivity and relatively obvious low-frequency expansion, and improves the sound pressure level at low frequencies. According to the design method of the present disclosure, more parameters can be adjusted and controlled, and the degree of freedom is greater.